verb (used with object), insulated, insulating. 1. to cover, line, or separate with a material that prevents or reduces the passage, transfer, or leakage of heat, electricity, or sound: to insulate an electric wire with a rubber sheath; to insulate a coat with down. 2. to place in an isolated situation or condition; segregate. /ˈɪnsjʊˌleɪt/verb (transitive) 1. to prevent or reduce the transmission of electricity, heat, or sound to or from (a body, device, or region) by surrounding with a nonconducting material 2. to isolate or detach v.

1530s, “make into an island,” from Latin insulatus, from insula (see insular). Sense of “cause a person or thing to be detached from surroundings” is from 1785. Electrical/chemical sense of “block from electricity or heat” is from 1742. Related: Insulated; insulating.

[in-suh-ley-ter, ins-yuh-] /ˈɪn səˌleɪ tər, ˈɪns yə-/ noun 1. Electricity. 2. a person or thing that insulates. /ˈɪnsjʊˌleɪtə/ noun 1. any material or device that insulates, esp a material with a very low electrical conductivity or thermal conductivity or something made of such a material n. 1801, agent noun in Latin form from insulate. insulator […]

[in-suh-lin, ins-yuh-] /ˈɪn sə lɪn, ˈɪns yə-/ noun 1. Biochemistry. a polypeptide hormone, produced by the beta cells of the islets of Langerhans of the pancreas, that regulates the metabolism of glucose and other nutrients. 2. Pharmacology. any of several commercial preparations of this substance, each of which allows a particular rate of absorption into […]

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